Update August 19, 2025: The Oregon Health Authority lifted its advisory warning of a harmful algal bloom on the Willamette River, stating "water monitoring has confirmed that the level of cyanotoxins in Ross Island Lagoon and the Willamette River...are below recreational guideline values for people." OHA continues to advise people be "alert to signs of cyanobacteria blooms...[which] can develop and disappear on any water body at any time when bloom conditions are favorable."
In some parts of the city, it can be easy to forget the Willamette River exists. Not so in the sliver of South Portland known as John's Landing, lying just south of South Waterfront's gleaming towers and scrubs-clad masses.